Closed Loop GeoThermal - Cooling & clean Heating from the earth.

EnergySage Customer
Quick Facts
Average Annual Savings


Energy Needs Met

75% to 99%

of space heating

Energy Needs Met


or more of air conditioning

Net Investment


Return on Investment


What You Need to Know


Our closed loop geothermal heat pump system uses two 365' geothermal wells, ClimateMaster tranquility 27 heat pump, Flow Center Products BNRF136 Earth Loop Pump, and ClimateMaster ATP32U03 Thermostat

Other Benefits:

This system qualified for the PSNH HeatSmart electric rate, which is typically about a 25-33% discount versus the regular residential rate. Currently, the savings is 33%.

Maintenance Requirements:

January 2012 Bill Wenzel Heating & Air Conditioning expertly diagnosed & efficiently replaced a bad air coil(warranty item) & resultant low refrigerant as well as made some airflow improvements in the CoreFocused Pilates Studio.

Efficiency or Sustainability Improvements:

We had our house blower-door tested and it was found to be perfectly balanced at a 0.38 air changes per hour rate, so no further insulating or draft mitigation was necessary.

My Motivation:

We wanted to hedge the rising cost of fossil fuels (we previously heated with propane) and also wanted to update our central A/C system, which was a 1987 vintage 8 SEER system from Lennox, good for its day, but no comparison to the efficiencies of the ClimateMaster system we installed. Also, depending on the price of propane, I felt we could save between $1,800 and $2,300/year.


If you are in a well insulated house with an aging heating and cooling system (preferably forced hot air), and may need to replace the system in the next few years, I would strongly urge you to look into geothermal systems like ours. My only regret is that I didn't install the de-super-heater to give us 'free' hot water from our 'Geo' system.

Experience with Installer:

The original installers were very good, however, a year after installing our system, they stopped doing business in the Geothermal arena. The folks at Bill Wenzel Heating & Air Conditioning, Inc., have been very helpful and expert in maintaining the system since they took over from the original installers.

Open House Info:

CoreFocused Pilates Studio in Hollis NH and Secules residence will participate in the NESEA 2012 Green House Tour on Saturday, October 13th. The business & home feature 2010 GeoThermal Heating & Cooling & 2009 Solar Hot water & 1987 Passive solar construction.

View Other Case Studies

Search for Other Case Studies

The EnergySage Marketplace

Get the best deal on solar.